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publisher: Books LLC, published: 2010-05-21
ASIN: 1156550564
EAN: 9781156550564
Purchase includes free access to book updates online and a free trial membership in the publisher's book club where you can select from more than a million books without charge. Chapters: Magnetometer, Nuclear Magnetic Resonance, Protein Nuclear Magnetic Resonance Spectroscopy, Nmr Spectroscopy, Relaxation, Solid-State Nuclear Magnetic Resonance, Residual Dipolar Coupling, Nuclear Magnetic Resonance in Porous Media, Proton Nmr, Bloch Equations, Chemical Shift, Topicity, Carbon-13 Nmr, Nmr Spectra Database, Correlation Spectroscopy, Nuclear Magnetic Resonance Decoupling, Earth's Field Nmr, J-Coupling, Aromatic Ring Current, Carbon-13 Nmr Satellite, Spin Echo, Cidnp, Kurt Wüthrich, Carbohydrate Nmr, in Vivo Magnetic Resonance Spectroscopy, Magnetic Resonance Force Microscopy, Heteronuclear Single Quantum Coherence, Nuclear Quadrupole Resonance, Nuclear Orientation, Nuclear Overhauser Effect, Magic Angle Spinning, Magic Angle, Hnca Experiment, Hncoca Experiment, Transverse Relaxation Optimized Spectroscopy, Karplus Equation, Magnetic Dipole-dipole Interaction, Jesús Jiménez Barbero, Free Induction Decay, Sequential Walking, Nmr Spectroscopy of Stereoisomers, Proton Enhanced Nuclear Induction Spectroscopy, Spin Chemistry, Gradient Enhanced Nmr Spectroscopy, Exclusive Correlation Spectroscopy, Insensitive Nuclei Enhanced by Polarization Transfer, Pulse Sequence, Nmr Database Method, Pulsed Field Gradient, Phosphorus-31 Nmr, Fluorine-19 Nmr, Robinson Oscillator, Electric Field Nmr, Zero Field Nmr, Residual Chemical Shift Anisotropy, Low Field Nmr, Relaxometry. Excerpt: An aromatic ring current is an effect observed in aromatic molecules such as benzene and naphthalene . If a magnetic field is directed perpendicular to the plane of the aromatic system, a ring current is induced in the delocalized electrons of the aromatic ring. This is a direct consequence of Ampère's law ; since the electrons involved are free to circulate, rather than being localized in bonds as they...
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